Boston weather by month › December
Boston in December: weather and what to expect
It’s fine, but not the best. May to June and September are more pleasant.
December weather in Boston
Daytime high43°F 6°C
Night low26°F -3°C
Rain4.3 in 110 mm
AirDry
SunWeak sun
In December, Boston averages highs of 43°F (6°C) and lows of 26°F (-3°C), with 4.3 in (110 mm) of rain. The air feels dry and the sun is weak. 1991–2020 averages, not a forecast.
Pack: a warm jacket, a rain jacket or umbrella.
Places with the same weather in December
Match out of 100 for December, one city per country.
Jan · Feb · Mar · Apr · May · Jun · Jul · Aug · Sep · Oct · Nov · Dec